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Mixed
3D
Micro
system, preferences
Gainsboro
128x128
UI
Smooth
Snowish
software, system, update
Silver
Gnome, system
SteelBlue
preferences, settings, system
Files & folders
Folder
system, Folder
Black
Computer & hardware
Pandora
system
iSphera
DarkSlateGray
Desktop apps
Flat
iBox (Grey)
Music & multimedia
iBox (Black)
Handdrawn
Hoya Imperial
WhiteSmoke
Sketch Icons by Suki
system, system 9
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Drifting
system, settings
PaleTurquoise
64x64
Obsidianus
Mac OS X style
gears, settings, Utilities
512x512
Ultimate Gnome
system, set, set table
256x256
update, software, system
system, software, Installer
system, Applications
help, system
DarkSeaGreen
Pixel
Lynx Black
screen, Lock, system
16x16
system, search
22x22
system, xfce, Exit